cAMP-dependent protein kinase inhibitor 2,cAMP-dependent protein kinase inhibitor beta,PKI-beta,PRKACN2,protein kinase (cAMP-dependent, catalytic) inhibitor beta.
Extremely potent competitive inhibitor of cAMP-dependent protein kinase activity, this protein interacts with the catalytic subunit of the enzyme after the cAMP-induced dissociation of its regulatory chains.